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Folio conversion from Matthew Wilcox and a few various fixes

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Merge tag 'jfs-6.11' of github.com:kleikamp/linux-shaggy

Pull jfs updates from David Kleikamp:
 "Folio conversion from Matthew Wilcox and a few various fixes"

* tag 'jfs-6.11' of github.com:kleikamp/linux-shaggy:
  jfs: don't walk off the end of ealist
  jfs: Fix shift-out-of-bounds in dbDiscardAG
  jfs: Fix array-index-out-of-bounds in diFree
  jfs: fix null ptr deref in dtInsertEntry
  jfs: Remove use of folio error flag
  fs: Remove i_blocks_per_page
  jfs: Change metapage->page to metapage->folio
  jfs: Convert force_metapage to use a folio
  jfs: Convert inc_io to take a folio
  jfs: Convert page_to_mp to folio_to_mp
  jfs; Convert __invalidate_metapages to use a folio
  jfs: Convert dec_io to take a folio
  jfs: Convert drop_metapage and remove_metapage to take a folio
  jfs; Convert release_metapage to use a folio
  jfs: Convert insert_metapage() to take a folio
  jfs: Convert __get_metapage to use a folio
  jfs: Convert metapage_writepage to metapage_write_folio
  jfs: Convert metapage_read_folio to use folio APIs
This commit is contained in:
Linus Torvalds 2024-07-23 15:15:16 -07:00
commit 371c141464
8 changed files with 193 additions and 179 deletions
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2
fs/jfs/jfs_dmap.c
View file

@ -1626,6 +1626,8 @@ s64 dbDiscardAG(struct inode *ip, int agno, s64 minlen)
} else if (rc == -ENOSPC) {
/* search for next smaller log2 block */
l2nb = BLKSTOL2(nblocks) - 1;
if (unlikely(l2nb < 0))
break;
nblocks = 1LL << l2nb;
} else {
/* Trim any already allocated blocks */

2
fs/jfs/jfs_dtree.c
View file

@ -834,6 +834,8 @@ int dtInsert(tid_t tid, struct inode *ip,
* the full page.
*/
DT_GETSEARCH(ip, btstack->top, bn, mp, p, index);
if (p->header.freelist == 0)
return -EINVAL;
/*
* insert entry for new key

5
fs/jfs/jfs_imap.c
View file

@ -290,7 +290,7 @@ int diSync(struct inode *ipimap)
int diRead(struct inode *ip)
{
struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
int iagno, ino, extno, rc;
int iagno, ino, extno, rc, agno;
struct inode *ipimap;
struct dinode *dp;
struct iag *iagp;
@ -339,8 +339,11 @@ int diRead(struct inode *ip)
/* get the ag for the iag */
agstart = le64_to_cpu(iagp->agstart);
agno = BLKTOAG(agstart, JFS_SBI(ip->i_sb));
release_metapage(mp);
if (agno >= MAXAG || agno < 0)
return -EIO;
rel_inode = (ino & (INOSPERPAGE - 1));
pageno = blkno >> sbi->l2nbperpage;

2
fs/jfs/jfs_logmgr.c
View file

@ -1600,7 +1600,7 @@ void jfs_flush_journal(struct jfs_log *log, int wait)
mp, sizeof(struct metapage), 0);
print_hex_dump(KERN_ERR, "page: ",
DUMP_PREFIX_ADDRESS, 16,
sizeof(long), mp->page,
sizeof(long), mp->folio,
sizeof(struct page), 0);
} else
print_hex_dump(KERN_ERR, "tblock:",

316
fs/jfs/jfs_metapage.c
View file

@ -4,6 +4,7 @@
* Portions Copyright (C) Christoph Hellwig, 2001-2002
*/
#include <linux/blkdev.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/module.h>
@ -46,9 +47,9 @@ static inline void __lock_metapage(struct metapage *mp)
do {
set_current_state(TASK_UNINTERRUPTIBLE);
if (metapage_locked(mp)) {
unlock_page(mp->page);
folio_unlock(mp->folio);
io_schedule();
lock_page(mp->page);
folio_lock(mp->folio);
}
} while (trylock_metapage(mp));
__set_current_state(TASK_RUNNING);
@ -56,7 +57,7 @@ static inline void __lock_metapage(struct metapage *mp)
}
/*
* Must have mp->page locked
* Must have mp->folio locked
*/
static inline void lock_metapage(struct metapage *mp)
{
@ -75,36 +76,36 @@ static mempool_t *metapage_mempool;
struct meta_anchor {
int mp_count;
atomic_t io_count;
blk_status_t status;
struct metapage *mp[MPS_PER_PAGE];
};
#define mp_anchor(page) ((struct meta_anchor *)page_private(page))
static inline struct metapage *page_to_mp(struct page *page, int offset)
static inline struct metapage *folio_to_mp(struct folio *folio, int offset)
{
if (!PagePrivate(page))
struct meta_anchor *anchor = folio->private;
if (!anchor)
return NULL;
return mp_anchor(page)->mp[offset >> L2PSIZE];
return anchor->mp[offset >> L2PSIZE];
}
static inline int insert_metapage(struct page *page, struct metapage *mp)
static inline int insert_metapage(struct folio *folio, struct metapage *mp)
{
struct meta_anchor *a;
int index;
int l2mp_blocks; /* log2 blocks per metapage */
if (PagePrivate(page))
a = mp_anchor(page);
else {
a = folio->private;
if (!a) {
a = kzalloc(sizeof(struct meta_anchor), GFP_NOFS);
if (!a)
return -ENOMEM;
set_page_private(page, (unsigned long)a);
SetPagePrivate(page);
kmap(page);
folio_attach_private(folio, a);
kmap(&folio->page);
}
if (mp) {
l2mp_blocks = L2PSIZE - page->mapping->host->i_blkbits;
l2mp_blocks = L2PSIZE - folio->mapping->host->i_blkbits;
index = (mp->index >> l2mp_blocks) & (MPS_PER_PAGE - 1);
a->mp_count++;
a->mp[index] = mp;
@ -113,10 +114,10 @@ static inline int insert_metapage(struct page *page, struct metapage *mp)
return 0;
}
static inline void remove_metapage(struct page *page, struct metapage *mp)
static inline void remove_metapage(struct folio *folio, struct metapage *mp)
{
struct meta_anchor *a = mp_anchor(page);
int l2mp_blocks = L2PSIZE - page->mapping->host->i_blkbits;
struct meta_anchor *a = folio->private;
int l2mp_blocks = L2PSIZE - folio->mapping->host->i_blkbits;
int index;
index = (mp->index >> l2mp_blocks) & (MPS_PER_PAGE - 1);
@ -126,48 +127,53 @@ static inline void remove_metapage(struct page *page, struct metapage *mp)
a->mp[index] = NULL;
if (--a->mp_count == 0) {
kfree(a);
set_page_private(page, 0);
ClearPagePrivate(page);
kunmap(page);
folio_detach_private(folio);
kunmap(&folio->page);
}
}
static inline void inc_io(struct page *page)
static inline void inc_io(struct folio *folio)
{
atomic_inc(&mp_anchor(page)->io_count);
struct meta_anchor *anchor = folio->private;
atomic_inc(&anchor->io_count);
}
static inline void dec_io(struct page *page, void (*handler) (struct page *))
static inline void dec_io(struct folio *folio, blk_status_t status,
void (*handler)(struct folio *, blk_status_t))
{
if (atomic_dec_and_test(&mp_anchor(page)->io_count))
handler(page);
struct meta_anchor *anchor = folio->private;
if (anchor->status == BLK_STS_OK)
anchor->status = status;
if (atomic_dec_and_test(&anchor->io_count))
handler(folio, anchor->status);
}
#else
static inline struct metapage *page_to_mp(struct page *page, int offset)
static inline struct metapage *folio_to_mp(struct folio *folio, int offset)
{
return PagePrivate(page) ? (struct metapage *)page_private(page) : NULL;
return folio->private;
}
static inline int insert_metapage(struct page *page, struct metapage *mp)
static inline int insert_metapage(struct folio *folio, struct metapage *mp)
{
if (mp) {
set_page_private(page, (unsigned long)mp);
SetPagePrivate(page);
kmap(page);
folio_attach_private(folio, mp);
kmap(&folio->page);
}
return 0;
}
static inline void remove_metapage(struct page *page, struct metapage *mp)
static inline void remove_metapage(struct folio *folio, struct metapage *mp)
{
set_page_private(page, 0);
ClearPagePrivate(page);
kunmap(page);
folio_detach_private(folio);
kunmap(&folio->page);
}
#define inc_io(page) do {} while(0)
#define dec_io(page, handler) handler(page)
#define inc_io(folio) do {} while(0)
#define dec_io(folio, status, handler) handler(folio, status)
#endif
@ -218,12 +224,12 @@ void metapage_exit(void)
kmem_cache_destroy(metapage_cache);
}
static inline void drop_metapage(struct page *page, struct metapage *mp)
static inline void drop_metapage(struct folio *folio, struct metapage *mp)
{
if (mp->count || mp->nohomeok || test_bit(META_dirty, &mp->flag) ||
test_bit(META_io, &mp->flag))
return;
remove_metapage(page, mp);
remove_metapage(folio, mp);
INCREMENT(mpStat.pagefree);
free_metapage(mp);
}
@ -257,23 +263,20 @@ static sector_t metapage_get_blocks(struct inode *inode, sector_t lblock,
return lblock;
}
static void last_read_complete(struct page *page)
static void last_read_complete(struct folio *folio, blk_status_t status)
{
if (!PageError(page))
SetPageUptodate(page);
unlock_page(page);
if (status)
printk(KERN_ERR "Read error %d at %#llx\n", status,
folio_pos(folio));
folio_end_read(folio, status == 0);
}
static void metapage_read_end_io(struct bio *bio)
{
struct page *page = bio->bi_private;
struct folio *folio = bio->bi_private;
if (bio->bi_status) {
printk(KERN_ERR "metapage_read_end_io: I/O error\n");
SetPageError(page);
}
dec_io(page, last_read_complete);
dec_io(folio, bio->bi_status, last_read_complete);
bio_put(bio);
}
@ -299,13 +302,19 @@ static void remove_from_logsync(struct metapage *mp)
LOGSYNC_UNLOCK(log, flags);
}
static void last_write_complete(struct page *page)
static void last_write_complete(struct folio *folio, blk_status_t status)
{
struct metapage *mp;
unsigned int offset;
if (status) {
int err = blk_status_to_errno(status);
printk(KERN_ERR "metapage_write_end_io: I/O error\n");
mapping_set_error(folio->mapping, err);
}
for (offset = 0; offset < PAGE_SIZE; offset += PSIZE) {
mp = page_to_mp(page, offset);
mp = folio_to_mp(folio, offset);
if (mp && test_bit(META_io, &mp->flag)) {
if (mp->lsn)
remove_from_logsync(mp);
@ -316,28 +325,25 @@ static void last_write_complete(struct page *page)
* safe unless I have the page locked
*/
}
end_page_writeback(page);
folio_end_writeback(folio);
}
static void metapage_write_end_io(struct bio *bio)
{
struct page *page = bio->bi_private;
struct folio *folio = bio->bi_private;
BUG_ON(!PagePrivate(page));
BUG_ON(!folio->private);
if (bio->bi_status) {
printk(KERN_ERR "metapage_write_end_io: I/O error\n");
SetPageError(page);
}
dec_io(page, last_write_complete);
dec_io(folio, bio->bi_status, last_write_complete);
bio_put(bio);
}
static int metapage_writepage(struct page *page, struct writeback_control *wbc)
static int metapage_write_folio(struct folio *folio,
struct writeback_control *wbc, void *unused)
{
struct bio *bio = NULL;
int block_offset; /* block offset of mp within page */
struct inode *inode = page->mapping->host;
struct inode *inode = folio->mapping->host;
int blocks_per_mp = JFS_SBI(inode->i_sb)->nbperpage;
int len;
int xlen;
@ -353,14 +359,13 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
int offset;
int bad_blocks = 0;
page_start = (sector_t)page->index <<
(PAGE_SHIFT - inode->i_blkbits);
BUG_ON(!PageLocked(page));
BUG_ON(PageWriteback(page));
set_page_writeback(page);
page_start = folio_pos(folio) >> inode->i_blkbits;
BUG_ON(!folio_test_locked(folio));
BUG_ON(folio_test_writeback(folio));
folio_start_writeback(folio);
for (offset = 0; offset < PAGE_SIZE; offset += PSIZE) {
mp = page_to_mp(page, offset);
mp = folio_to_mp(folio, offset);
if (!mp || !test_bit(META_dirty, &mp->flag))
continue;
@ -389,22 +394,20 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
continue;
}
/* Not contiguous */
if (bio_add_page(bio, page, bio_bytes, bio_offset) <
bio_bytes)
goto add_failed;
bio_add_folio_nofail(bio, folio, bio_bytes, bio_offset);
/*
* Increment counter before submitting i/o to keep
* count from hitting zero before we're through
*/
inc_io(page);
inc_io(folio);
if (!bio->bi_iter.bi_size)
goto dump_bio;
submit_bio(bio);
nr_underway++;
bio = NULL;
} else
inc_io(page);
xlen = (PAGE_SIZE - offset) >> inode->i_blkbits;
inc_io(folio);
xlen = (folio_size(folio) - offset) >> inode->i_blkbits;
pblock = metapage_get_blocks(inode, lblock, &xlen);
if (!pblock) {
printk(KERN_ERR "JFS: metapage_get_blocks failed\n");
@ -420,7 +423,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
bio = bio_alloc(inode->i_sb->s_bdev, 1, REQ_OP_WRITE, GFP_NOFS);
bio->bi_iter.bi_sector = pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_write_end_io;
bio->bi_private = page;
bio->bi_private = folio;
/* Don't call bio_add_page yet, we may add to this vec */
bio_offset = offset;
@ -430,8 +433,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
next_block = lblock + len;
}
if (bio) {
if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes)
goto add_failed;
bio_add_folio_nofail(bio, folio, bio_bytes, bio_offset);
if (!bio->bi_iter.bi_size)
goto dump_bio;
@ -439,50 +441,56 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
nr_underway++;
}
if (redirty)
redirty_page_for_writepage(wbc, page);
folio_redirty_for_writepage(wbc, folio);
unlock_page(page);
folio_unlock(folio);
if (bad_blocks)
goto err_out;
if (nr_underway == 0)
end_page_writeback(page);
folio_end_writeback(folio);
return 0;
add_failed:
/* We should never reach here, since we're only adding one vec */
printk(KERN_ERR "JFS: bio_add_page failed unexpectedly\n");
goto skip;
dump_bio:
print_hex_dump(KERN_ERR, "JFS: dump of bio: ", DUMP_PREFIX_ADDRESS, 16,
4, bio, sizeof(*bio), 0);
skip:
bio_put(bio);
unlock_page(page);
dec_io(page, last_write_complete);
folio_unlock(folio);
dec_io(folio, BLK_STS_OK, last_write_complete);
err_out:
while (bad_blocks--)
dec_io(page, last_write_complete);
dec_io(folio, BLK_STS_OK, last_write_complete);
return -EIO;
}
static int metapage_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
struct blk_plug plug;
int err;
blk_start_plug(&plug);
err = write_cache_pages(mapping, wbc, metapage_write_folio, NULL);
blk_finish_plug(&plug);
return err;
}
static int metapage_read_folio(struct file *fp, struct folio *folio)
{
struct page *page = &folio->page;
struct inode *inode = page->mapping->host;
struct inode *inode = folio->mapping->host;
struct bio *bio = NULL;
int block_offset;
int blocks_per_page = i_blocks_per_page(inode, page);
int blocks_per_page = i_blocks_per_folio(inode, folio);
sector_t page_start; /* address of page in fs blocks */
sector_t pblock;
int xlen;
unsigned int len;
int offset;
BUG_ON(!PageLocked(page));
page_start = (sector_t)page->index <<
(PAGE_SHIFT - inode->i_blkbits);
BUG_ON(!folio_test_locked(folio));
page_start = folio_pos(folio) >> inode->i_blkbits;
block_offset = 0;
while (block_offset < blocks_per_page) {
@ -490,9 +498,9 @@ static int metapage_read_folio(struct file *fp, struct folio *folio)
pblock = metapage_get_blocks(inode, page_start + block_offset,
&xlen);
if (pblock) {
if (!PagePrivate(page))
insert_metapage(page, NULL);
inc_io(page);
if (!folio->private)
insert_metapage(folio, NULL);
inc_io(folio);
if (bio)
submit_bio(bio);
@ -501,11 +509,10 @@ static int metapage_read_folio(struct file *fp, struct folio *folio)
bio->bi_iter.bi_sector =
pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_read_end_io;
bio->bi_private = page;
bio->bi_private = folio;
len = xlen << inode->i_blkbits;
offset = block_offset << inode->i_blkbits;
if (bio_add_page(bio, page, len, offset) < len)
goto add_failed;
bio_add_folio_nofail(bio, folio, len, offset);
block_offset += xlen;
} else
block_offset++;
@ -513,15 +520,9 @@ static int metapage_read_folio(struct file *fp, struct folio *folio)
if (bio)
submit_bio(bio);
else
unlock_page(page);
folio_unlock(folio);
return 0;
add_failed:
printk(KERN_ERR "JFS: bio_add_page failed unexpectedly\n");
bio_put(bio);
dec_io(page, last_read_complete);
return -EIO;
}
static bool metapage_release_folio(struct folio *folio, gfp_t gfp_mask)
@ -531,7 +532,7 @@ static bool metapage_release_folio(struct folio *folio, gfp_t gfp_mask)
int offset;
for (offset = 0; offset < PAGE_SIZE; offset += PSIZE) {
mp = page_to_mp(&folio->page, offset);
mp = folio_to_mp(folio, offset);
if (!mp)
continue;
@ -546,7 +547,7 @@ static bool metapage_release_folio(struct folio *folio, gfp_t gfp_mask)
}
if (mp->lsn)
remove_from_logsync(mp);
remove_metapage(&folio->page, mp);
remove_metapage(folio, mp);
INCREMENT(mpStat.pagefree);
free_metapage(mp);
}
@ -565,7 +566,7 @@ static void metapage_invalidate_folio(struct folio *folio, size_t offset,
const struct address_space_operations jfs_metapage_aops = {
.read_folio = metapage_read_folio,
.writepage = metapage_writepage,
.writepages = metapage_writepages,
.release_folio = metapage_release_folio,
.invalidate_folio = metapage_invalidate_folio,
.dirty_folio = filemap_dirty_folio,
@ -579,7 +580,7 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
int l2bsize;
struct address_space *mapping;
struct metapage *mp = NULL;
struct page *page;
struct folio *folio;
unsigned long page_index;
unsigned long page_offset;
@ -610,22 +611,22 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
}
if (new && (PSIZE == PAGE_SIZE)) {
page = grab_cache_page(mapping, page_index);
if (!page) {
jfs_err("grab_cache_page failed!");
folio = filemap_grab_folio(mapping, page_index);
if (IS_ERR(folio)) {
jfs_err("filemap_grab_folio failed!");
return NULL;
}
SetPageUptodate(page);
folio_mark_uptodate(folio);
} else {
page = read_mapping_page(mapping, page_index, NULL);
if (IS_ERR(page)) {
folio = read_mapping_folio(mapping, page_index, NULL);
if (IS_ERR(folio)) {
jfs_err("read_mapping_page failed!");
return NULL;
}
lock_page(page);
folio_lock(folio);
}
mp = page_to_mp(page, page_offset);
mp = folio_to_mp(folio, page_offset);
if (mp) {
if (mp->logical_size != size) {
jfs_error(inode->i_sb,
@ -651,16 +652,16 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
mp = alloc_metapage(GFP_NOFS);
if (!mp)
goto unlock;
mp->page = page;
mp->folio = folio;
mp->sb = inode->i_sb;
mp->flag = 0;
mp->xflag = COMMIT_PAGE;
mp->count = 1;
mp->nohomeok = 0;
mp->logical_size = size;
mp->data = page_address(page) + page_offset;
mp->data = folio_address(folio) + page_offset;
mp->index = lblock;
if (unlikely(insert_metapage(page, mp))) {
if (unlikely(insert_metapage(folio, mp))) {
free_metapage(mp);
goto unlock;
}
@ -672,28 +673,27 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
memset(mp->data, 0, PSIZE);
}
unlock_page(page);
folio_unlock(folio);
jfs_info("__get_metapage: returning = 0x%p data = 0x%p", mp, mp->data);
return mp;
unlock:
unlock_page(page);
folio_unlock(folio);
return NULL;
}
void grab_metapage(struct metapage * mp)
{
jfs_info("grab_metapage: mp = 0x%p", mp);
get_page(mp->page);
lock_page(mp->page);
folio_get(mp->folio);
folio_lock(mp->folio);
mp->count++;
lock_metapage(mp);
unlock_page(mp->page);
folio_unlock(mp->folio);
}
static int metapage_write_one(struct page *page)
static int metapage_write_one(struct folio *folio)
{
struct folio *folio = page_folio(page);
struct address_space *mapping = folio->mapping;
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
@ -707,7 +707,7 @@ static int metapage_write_one(struct page *page)
if (folio_clear_dirty_for_io(folio)) {
folio_get(folio);
ret = metapage_writepage(page, &wbc);
ret = metapage_write_folio(folio, &wbc, NULL);
if (ret == 0)
folio_wait_writeback(folio);
folio_put(folio);
@ -722,71 +722,69 @@ static int metapage_write_one(struct page *page)
void force_metapage(struct metapage *mp)
{
struct page *page = mp->page;
struct folio *folio = mp->folio;
jfs_info("force_metapage: mp = 0x%p", mp);
set_bit(META_forcewrite, &mp->flag);
clear_bit(META_sync, &mp->flag);
get_page(page);
lock_page(page);
set_page_dirty(page);
if (metapage_write_one(page))
folio_get(folio);
folio_lock(folio);
folio_mark_dirty(folio);
if (metapage_write_one(folio))
jfs_error(mp->sb, "metapage_write_one() failed\n");
clear_bit(META_forcewrite, &mp->flag);
put_page(page);
folio_put(folio);
}
void hold_metapage(struct metapage *mp)
{
lock_page(mp->page);
folio_lock(mp->folio);
}
void put_metapage(struct metapage *mp)
{
if (mp->count || mp->nohomeok) {
/* Someone else will release this */
unlock_page(mp->page);
folio_unlock(mp->folio);
return;
}
get_page(mp->page);
folio_get(mp->folio);
mp->count++;
lock_metapage(mp);
unlock_page(mp->page);
folio_unlock(mp->folio);
release_metapage(mp);
}
void release_metapage(struct metapage * mp)
{
struct page *page = mp->page;
struct folio *folio = mp->folio;
jfs_info("release_metapage: mp = 0x%p, flag = 0x%lx", mp, mp->flag);
BUG_ON(!page);
lock_page(page);
folio_lock(folio);
unlock_metapage(mp);
assert(mp->count);
if (--mp->count || mp->nohomeok) {
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
return;
}
if (test_bit(META_dirty, &mp->flag)) {
set_page_dirty(page);
folio_mark_dirty(folio);
if (test_bit(META_sync, &mp->flag)) {
clear_bit(META_sync, &mp->flag);
if (metapage_write_one(page))
if (metapage_write_one(folio))
jfs_error(mp->sb, "metapage_write_one() failed\n");
lock_page(page);
folio_lock(folio);
}
} else if (mp->lsn) /* discard_metapage doesn't remove it */
remove_from_logsync(mp);
/* Try to keep metapages from using up too much memory */
drop_metapage(page, mp);
drop_metapage(folio, mp);
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
}
void __invalidate_metapages(struct inode *ip, s64 addr, int len)
@ -798,7 +796,6 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
struct address_space *mapping =
JFS_SBI(ip->i_sb)->direct_inode->i_mapping;
struct metapage *mp;
struct page *page;
unsigned int offset;
/*
@ -807,11 +804,12 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
*/
for (lblock = addr & ~(BlocksPerPage - 1); lblock < addr + len;
lblock += BlocksPerPage) {
page = find_lock_page(mapping, lblock >> l2BlocksPerPage);
if (!page)
struct folio *folio = filemap_lock_folio(mapping,
lblock >> l2BlocksPerPage);
if (IS_ERR(folio))
continue;
for (offset = 0; offset < PAGE_SIZE; offset += PSIZE) {
mp = page_to_mp(page, offset);
mp = folio_to_mp(folio, offset);
if (!mp)
continue;
if (mp->index < addr)
@ -824,8 +822,8 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
if (mp->lsn)
remove_from_logsync(mp);
}
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
}
}

16
fs/jfs/jfs_metapage.h
View file

@ -24,7 +24,7 @@ struct metapage {
wait_queue_head_t wait;
/* implementation */
struct page *page;
struct folio *folio;
struct super_block *sb;
unsigned int logical_size;
@ -90,14 +90,14 @@ static inline void discard_metapage(struct metapage *mp)
static inline void metapage_nohomeok(struct metapage *mp)
{
struct page *page = mp->page;
lock_page(page);
struct folio *folio = mp->folio;
folio_lock(folio);
if (!mp->nohomeok++) {
mark_metapage_dirty(mp);
get_page(page);
wait_on_page_writeback(page);
folio_get(folio);
folio_wait_writeback(folio);
}
unlock_page(page);
folio_unlock(folio);
}
/*
@ -107,7 +107,7 @@ static inline void metapage_nohomeok(struct metapage *mp)
static inline void metapage_wait_for_io(struct metapage *mp)
{
if (test_bit(META_io, &mp->flag))
wait_on_page_writeback(mp->page);
folio_wait_writeback(mp->folio);
}
/*
@ -116,7 +116,7 @@ static inline void metapage_wait_for_io(struct metapage *mp)
static inline void _metapage_homeok(struct metapage *mp)
{
if (!--mp->nohomeok)
put_page(mp->page);
folio_put(mp->folio);
}
static inline void metapage_homeok(struct metapage *mp)

23
fs/jfs/xattr.c
View file

@ -797,7 +797,7 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
size_t buf_size)
{
struct jfs_ea_list *ealist;
struct jfs_ea *ea;
struct jfs_ea *ea, *ealist_end;
struct ea_buffer ea_buf;
int xattr_size;
ssize_t size;
@ -817,9 +817,16 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
goto not_found;
ealist = (struct jfs_ea_list *) ea_buf.xattr;
ealist_end = END_EALIST(ealist);
/* Find the named attribute */
for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea))
for (ea = FIRST_EA(ealist); ea < ealist_end; ea = NEXT_EA(ea)) {
if (unlikely(ea + 1 > ealist_end) ||
unlikely(NEXT_EA(ea) > ealist_end)) {
size = -EUCLEAN;
goto release;
}
if ((namelen == ea->namelen) &&
memcmp(name, ea->name, namelen) == 0) {
/* Found it */
@ -834,6 +841,7 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
memcpy(data, value, size);
goto release;
}
}
not_found:
size = -ENODATA;
release:
@ -861,7 +869,7 @@ ssize_t jfs_listxattr(struct dentry * dentry, char *data, size_t buf_size)
ssize_t size = 0;
int xattr_size;
struct jfs_ea_list *ealist;
struct jfs_ea *ea;
struct jfs_ea *ea, *ealist_end;
struct ea_buffer ea_buf;
down_read(&JFS_IP(inode)->xattr_sem);
@ -876,9 +884,16 @@ ssize_t jfs_listxattr(struct dentry * dentry, char *data, size_t buf_size)
goto release;
ealist = (struct jfs_ea_list *) ea_buf.xattr;
ealist_end = END_EALIST(ealist);
/* compute required size of list */
for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) {
for (ea = FIRST_EA(ealist); ea < ealist_end; ea = NEXT_EA(ea)) {
if (unlikely(ea + 1 > ealist_end) ||
unlikely(NEXT_EA(ea) > ealist_end)) {
size = -EUCLEAN;
goto release;
}
if (can_list(ea))
size += name_size(ea) + 1;
}

6
include/linux/pagemap.h
View file

@ -1537,10 +1537,4 @@ unsigned int i_blocks_per_folio(struct inode *inode, struct folio *folio)
{
return folio_size(folio) >> inode->i_blkbits;
}
static inline
unsigned int i_blocks_per_page(struct inode *inode, struct page *page)
{
return i_blocks_per_folio(inode, page_folio(page));
}
#endif /* _LINUX_PAGEMAP_H */